Migration

Today I learned that race has very little to do with genetics.  I always thought that different races had a slightly different genetic code.  But there are no genetic differences between races.  I also learned that there are some people that actually migrate into North Korea.  pewglobal.org says that North Korea has less than 10,000 migrants from South Korea and 30,000 migrants from China in 2013.  There were also 50,000 people living in North Korea that were not born there in 2013.

Migrants on a boat